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Biggest sets: Educational and Dacta

The largest LEGO sets by piece count — the flagship display builds — and what they're worth on the secondary market. Scoped to Educational and Dacta.

1. 1Window Exploration Bag2000409-2 · 2024 · 5,500 pcs5,500pieces$288.00
2. 2Identity and Landscape Kit2000430-2 · 2022 · 2,810 pcs2,810pieces$789.99
3. 3Arctic Animals Science Kit45203-1 · 2026 · 1,134 pcs1,134pieces$74.88
4. 4Mars Mission Science Kit45202-1 · 2026 · 933 pcs933pieces$70.00
5. 5SPIKE Prime Expansion Set (v2)45681-1 · 2021 · 604 pcs604pieces$194.48
6. 6SPIKE Prime Expansion Set45680-1 · 2020 · 603 pcs603pieces$160.00
7. 7BricQ Motion Prime45400-1 · 2021 · 568 pcs568pieces$129.99
8. 8XL Bulk Set9090-2 · 2019 · 564 pcs564pieces$229.70
9. 9SPIKE Prime45678-1 · 2020 · 532 pcs532pieces$515.00
10. 10BricQ Motion Essential45401-1 · 2021 · 523 pcs523pieces$147.49
11. 11Moon Mission Science Kit45200-1 · 2026 · 519 pcs519pieces$39.22
12. 12My XL World45028-1 · 2020 · 492 pcs492pieces$230.00
13. 13Antarctic Animals Science Kit45201-1 · 2026 · 461 pcs461pieces$46.50
14. 14SPIKE Essential45345-1 · 2021 · 453 pcs453pieces$299.99
15. 15Replacement Pack for Middle School45655-1 · 2025 · 381 pcs381pieces$22.46
16. 16Replacement Pack for Elementary School45654-1 · 2025 · 350 pcs350pieces$24.95
17. 17Science Kit Year 1-345620-1 · 2025 · 278 pcs278pieces$344.11
18. 18Coding Express45025-1 · 2018 · 235 pcs235pieces$265.00
19. 19SPIKE Prime Marketing Kit2000456-1 · 2019 · 150 pcs150pieces$10.23
20. 20Tubes45026-1 · 2020 · 150 pcs150pieces$162.00
21. 21Letters45027-1 · 2020 · 130 pcs130pieces$115.00
22. 22LE Coral Science Marketing Kit2000483-1 · 2025 · 126 pcs126pieces$15.98
23. 23SPIKE Essential Introductory Set2000458-1 · 2021 · 112 pcs112pieces$6.41
24. 24Personal Learning Kit Prime2000480-1 · 2022 · 110 pcs110pieces$20.00
25. 25StoryTales Set45005-2 · 2020 · 109 pcs109pieces$149.99
26. 26Personal Learning Kit Essential2000481-1 · 2022 · 102 pcs102pieces$29.25
27. 27Animals45029-1 · 2020 · 91 pcs91pieces$112.99
28. 28BricQ Motion Prime Personal Learning Kit2000470-1 · 2021 · 78 pcs78pieces$24.35
29. 29BricQ Motion Essential Personal Learning Kit2000471-1 · 2021 · 62 pcs62pieces$24.99
30. 30People45030-1 · 2020 · 53 pcs53pieces$113.38
31. 31SPIKE Prime Workshop Kit2000720-1 · 2020 · 53 pcs53pieces$13.49
32. 32Braille Bricks Toolkit (English)4000503-1 · 2020 · 40 pcs40pieces$55.00
33. 33SPIKE Essential Replacement Pack 22000723-1 · 2021 · 16 pcs16pieces$14.42
34. 34Small Hub45609-1 · 2021 · 2 pcs2pieces$207.99
35. 35Large Hub45601-1 · 2020 · 2 pcs2pieces$320.74
36. 36Multi-charger45623-1 · 2025 · 2 pcs2pieces$139.95
37. 37Color Sensor45653-1 · 2025 · 1 pcs1pieces$130.31
38. 38Multi-charger45624-1 · 2025 · 1 pcs1pieces$139.95
39. 39Micro USB Connector Cable45611-1 · 2020 · 1 pcs1pieces$18.00
40. 40Force Sensor45606-1 · 2020 · 1 pcs1pieces$41.20
41. 41Large Hub Battery45610-1 · 2020 · 1 pcs1pieces$115.00
42. 42Medium Angular Motor45603-1 · 2020 · 1 pcs1pieces$65.84
43. 43Small Hub Battery45612-1 · 2021 · 1 pcs1pieces$110.95
44. 44Distance Sensor45604-1 · 2020 · 1 pcs1pieces$54.97
45. 45Color Sensor45605-1 · 2020 · 1 pcs1pieces$33.99
46. 46Small Angular Motor45607-1 · 2021 · 1 pcs1pieces$59.95
47. 47Single Motor45650-1 · 2025 · 1 pcs1pieces$258.24
48. 48Controller45652-1 · 2025 · 1 pcs1pieces$135.52
49. 49Large Angular Motor45602-1 · 2020 · 1 pcs1pieces$49.97
50. 50Double Motor45651-1 · 2025 · 1 pcs1pieces$258.24

LEGO Educational and Dacta value guide →Browse all Educational and Dacta sets →